Wouldn't it be nice if they could tie those kind of settings to your key transponder such that when you got in your car, it would automatically choose your phone pairing settings. Maybe some day they will at least offer it on the Lexus. Right now the only way to do it that I know, is to select your phone from the settings menu. You are already a step ahead of me, I didn't know there was a way to do it from voice commands.